Kiernan Shipka Will Star in the New 'Sabrina the Teenage Witch' Series

Fans flipped out in September when news broke that a Riverdale sister series based on Sabrina the Teenage Witch was in the works. The show, which is actually rooted from the graphic novel The Chilling Adventures of Sabrina, is expected to be darker and more violent than the Melissa Joan Hart show we all grew up loving. Like, in this world, Sabrina deals with legitimate evil forces and the occult.

The show was originally supposed to air on The CW, Riverdale's home, but it was quickly kicked over to Netflix. Fans, naturally, speculated for months about who would step into Sabrina Spellman's shoes; at one point, Selena Gomez's name was even thrown into the mix.

But now we know for sure who's playing Sabrina. No, it's not Gomez, but it is a very talented actress from a beloved television series. Any guesses? It's—wait for it—Kiernan Shipka from Mad Men.

"Dream come true! Dream #Sabrina! So excited to make magic with this lady," Riverdale show-runner Roberto Aguirre-Sacasa posted to Twitter on Friday evening, alongside a photo of Shipka. Check it out for yourself, below:

"We’re all such huge fans of Kiernan’s work that when we started talking about who this new incarnation of Sabrina could be, her name was on everyone’s wish list. This is a darker, more macabre version of Sabrina, and we’re incredibly excited for people to see Kiernan make this iconic character her own," Aguirre-Sacasa also said in a statement.

There's no word yet on an official release date for this Sabrina series; there isn't even a confirmed official title. However, the first season will have 20 hour-long episodes—which is a lot of magic. We can't wait.